SOLAS II-2 - Safe Return to Port Time

Contents

Safe-Return-to-Port (SRtP) endurance check for passenger ships - minimum 3 hours on each of 13 essential systems after a design casualty.

Formula

$$ t = D / v_{SRtP} $$

Symbol	Meaning	Unit	Source
$D$	Distance to port of refuge	nm	voyage plan
$v_{SRtP}$	Post-casualty service speed	kn	SRtP feasibility study